I have seen in a few magazines when reviewing speakers that they sometimes hook up 2 subs. My questions is how do they do that? When I bought my sub (Energy S8.2) I was living in a small place. I have the opportunity to get another S8.2 for under $100 and since I live in a bigger place I want to get it. I have a Denon AVR 3803 with Energy Connoisseur speakers (C-7's for front, C-1 for rears, and C-C3 is on the way). I appreciate any help I can get on this.